Current Conditions

Grayslake, Illinois

75°F24°C

Partly Cloudy

Wind

S 2 mph3 km/h

Humidity

39%

Cloud Cover

60%

As of Thursday, July 23, 2026 at 12:52 PM CDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Light wind from the SW around 4 mph6 km/h.

Night

Overcast, with a low around 69°F20°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Partly Cloudy	High 76°F25°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 58%	Wind S 5 mph7 km/h	Thursday: Partly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Light wind from the SW around 4 mph6 km/h. Thursday Night: Overcast, with a low around 69°F20°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.
FridayJul 24	Partly Cloudy	High 78°F26°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 54%	Wind S 6 mph9 km/h	Friday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Breezy from the SSE at 5 to 7 mph9 to 12 km/h. Friday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the S at 6 to 8 mph10 to 12 km/h.
SaturdayJul 25	Partly Cloudy	High 81°F27°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 42%	Wind SW 7 mph12 km/h	Saturday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the SW at 8 to 9 mph12 to 14 km/h. Saturday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 7 mph11 km/h.
SundayJul 26	Partly Cloudy	High 87°F31°CFeels 92°F33°C	Low 72°F22°C	Precip 0.02 in0.5 mm9%	Cloud 59%	Wind SW 7 mph11 km/h	Sunday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h.
MondayJul 27	Showers	High 90°F32°CFeels 97°F36°C	Low 76°F24°C	Precip 0.2 in5 mm29%	Cloud 47%	Wind SW 9 mph14 km/h	Monday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 76°F24°C — feels like 97°F36°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 29% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 77°F25°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 18% chance of showers throughout the night.
TuesdayJul 28	Drizzle	High 81°F27°C	Low 72°F22°C	Precip 0.03 in0.8 mm14%	Cloud 31%	Wind NNE 9 mph15 km/h	Tuesday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the NNE at 10 mph15 km/h. Humid. Tuesday Night: Mostly clear, with a low around 72°F22°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. 14% chance of drizzle overnight.
WednesdayJul 29	Clear	High 82°F28°C	Low 68°F20°C	Precip 0.02 in0.6 mm9%	Cloud 21%	Wind NE 7 mph12 km/h	Wednesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 69°F21°C. Breezy from the NE at 7 to 8 mph12 to 14 km/h. Wednesday Night: Mostly clear, with a low around 68°F20°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	76°F25°C	61°F16°C	0 in0 mm· —	58%	Partly Cloudy	S 5 mph7 km/h
DayPartly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Light wind from the SW around 4 mph6 km/h. NightOvercast, with a low around 69°F20°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.
	FridayJul 24	78°F26°C	64°F18°C	0 in0 mm· —	54%	Partly Cloudy	S 6 mph9 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Breezy from the SSE at 5 to 7 mph9 to 12 km/h. NightMostly cloudy, with a low around 64°F18°C. Breezy from the S at 6 to 8 mph10 to 12 km/h.
	SaturdayJul 25	81°F27°C	66°F19°C	0 in0 mm· —	42%	Partly Cloudy	SW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the SW at 8 to 9 mph12 to 14 km/h. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SW at 7 mph11 km/h.
	SundayJul 26	87°F31°C Feels 92°F33°C	72°F22°C	0.02 in0.5 mm· 9%	59%	Partly Cloudy	SW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h.
	MondayJul 27	90°F32°C Feels 97°F36°C	76°F24°C	0.2 in5 mm· 29%	47%	Showers	SW 9 mph14 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 76°F24°C — feels like 97°F36°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 29% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 18% chance of showers throughout the night.
	TuesdayJul 28	81°F27°C	72°F22°C	0.03 in0.8 mm· 14%	31%	Drizzle	NNE 9 mph15 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the NNE at 10 mph15 km/h. Humid. NightMostly clear, with a low around 72°F22°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. 14% chance of drizzle overnight.
	WednesdayJul 29	82°F28°C	68°F20°C	0.02 in0.6 mm· 9%	21%	Clear	NE 7 mph12 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 69°F21°C. Breezy from the NE at 7 to 8 mph12 to 14 km/h. NightMostly clear, with a low around 68°F20°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h.
	ThursdayJul 30	84°F29°C	71°F21°C	0.02 in0.6 mm· 9%	28%	Clear	E 7 mph11 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 71°F22°C. Breezy from the ENE at 7 mph11 km/h. NightPartly cloudy, with a low around 71°F21°C. Breezy from the ESE at 7 mph11 km/h.
	FridayJul 31	85°F30°C	72°F22°C	0.07 in1.8 mm· 15%	37%	Drizzle	SW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 85°F30°C and morning low of 72°F22°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 15% chance of drizzle throughout the day. NightPartly cloudy, with a low around 72°F22°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 15% chance of drizzle throughout the night.
	SaturdayAug 1	85°F29°C	72°F22°C	0.06 in1.5 mm· 12%	34%	Drizzle	WNW 7 mph12 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the NNW at 7 to 8 mph12 to 13 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 73°F23°C. Breezy from the WSW at 7 mph11 km/h. 12% chance of drizzle overnight.
	SundayAug 2	84°F29°C	71°F22°C	0.05 in1.3 mm· 12%	37%	Drizzle	SSW 8 mph12 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 71°F22°C. Breezy from the SW at 8 mph12 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 71°F22°C. Breezy from the S at 8 mph12 km/h. 10% chance of drizzle throughout the night.
	MondayAug 3	85°F29°C	72°F22°C	0.07 in1.8 mm· 15%	44%	Showers	SSW 9 mph14 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the SSW at 9 to 10 mph14 to 16 km/h. 13% chance of showers throughout the day. NightPartly cloudy, with a low around 72°F22°C. Breezy from the SSW at 8 mph13 km/h. 15% chance of drizzle throughout the night.
	TuesdayAug 4	85°F29°C	72°F22°C	0.09 in2.3 mm· 13%	49%	Showers	SW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the WSW at 9 mph14 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 72°F22°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 13% chance of showers throughout the night.
	WednesdayAug 5	83°F29°C	71°F22°C	0.09 in2.2 mm· 19%	46%	Drizzle	WSW 9 mph14 km/h
DayPartly cloudy and warm, with a high of 83°F29°C and morning low of 71°F22°C. Breezy from the WSW at 9 mph14 km/h. 19% chance of drizzle throughout the day. NightPartly cloudy, with a low around 72°F22°C. Breezy from the WSW at 8 to 9 mph14 to 14 km/h. 17% chance of drizzle throughout the night.
	ThursdayAug 6	83°F28°C	70°F21°C	0.08 in2 mm· 16%	44%	Drizzle	WSW 8 mph13 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the W at 9 mph14 km/h. 15% chance of drizzle throughout the day. NightPartly cloudy, with a low around 70°F21°C. Breezy from the WSW at 8 mph13 km/h. 16% chance of drizzle throughout the night.

Nearby Cities

Round Lake3 mi4 km Round Lake Beach3 mi5 km Mundelein6 mi10 km Libertyville6 mi10 km Gurnee7 mi12 km Vernon Hills9 mi15 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 42.3445°N, 88.0417°W·Elevation: 239m·Timezone: America/Chicago·Population: 20,915